turbo afteAn eight-cylinder turbocharged aftercooled four-stroke cycle diesel engine operata with an inlet pressure of 1.8 atmospheres at its maximum rated power at 2000 rev/ min. B = 128 mm, L = 140 mm, q, (based on inlet manifold conditions of 1.8 atm and 325 K after the aftercooler) = 0.9. The compressor isentropic efficiency is 0.7. (a) Calculate the power required to drive the turbocharger compressor. (b) If the exhaust gas temperature is 650•‹C and the turbocharger isentropic efficiency is 0.65, estimate the pressure at turbine inlet. The turbine exhausts to the atmosphere. rcooler